Stop walking today and you'll have to run tomorrow.
今日不走,明日需跑。
When I could run a mile without stopping or walking, I decided I would add one mile per month to my training.
当我不用中途停下休息或者步行就可以跑完1英里的时候。我决定每个月增加1英里的训练。
You run up the hill fast and then recover by jogging or walking down.
您快速地跑上坡,通过慢跑或走下坡进行恢复。
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